Vacuum heat exchange apparatus for ventilation of buildings, in

Details Vacuum heat exchange apparatus for ventilation of buildings, in Vacuum heat exchange apparatus for ventilation of buildings, in

1987-11-18

1989-07-11

Davis, Jr., Albert W.

Heat exchange

Structural installation

Related to wall, floor or ceiling structure of a chamber

98 331, 415 77, 416131, 416193R, F24H 302, F01D 104, F01D 500

Patent

active

048462616

ABSTRACT:
The present invention relates to a heat exchange machine for removing the excess of the heat during the summer period and the excess of humidity during the cold period. The machine comprises two tubes, one inside the other, an intermediate frame with two sets of blades attached to the frame from inside and outside thereof and driven by a common reversible motor in the same direction. One of these sets is the set of blades rigidly fixed to and the other one is swingingly mounted in the frame, so that the change of the direction of the fixed set of blades induces the change of the direction of the air flow in one of the tubes, meanwhile the direction of the air flow along the other tube induced by the other set of swingable blades remains the same regardless of the direction of rotation of this set.

REFERENCES:
patent: 2257976 (1941-10-01), Moorman
patent: 2488333 (1949-11-01), Schlachter
patent: 2790596 (1957-04-01), Stirling
patent: 3122307 (1964-02-01), Wasson et al.
patent: 3143283 (1964-08-01), Downs
patent: 3199773 (1965-08-01), Stirling
patent: 3202342 (1965-08-01), Wasson et al.
patent: 3487767 (1970-07-01), Kristiansen
patent: 3499378 (1970-03-01), Baumann et al.
patent: 3557681 (1971-01-01), Kristiansen
patent: 3635589 (1972-01-01), Kristiansen

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